<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>空格</title>
</head>

<body>
    <script>
        //JavaScript 会忽略多余的空格。您可以向脚本添加空格，来提高其可读性。下面的两行代码是等效的：
        //var person="runoob";
        var person = "runoob";
    </script>
</body>

</html>